DE 2 222 892 A11973
Assignee: Ernst Leitz GmbH
Inventors: Georg Knetsch, Hermann Desch, Heinz Marquardt, Walter Watz
Walter Watz
3 related patents across 3 interactive lens diagrams.
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Ernst Leitz GmbH(2)
DE 2 246 966 A11974
Assignee: Ernst Leitz GmbH
Inventors: Georg Knetsch, Walter Watz
Leica Camera GmbH(1)
US 5,161,060 A1992
Assignee: Leica Camera GmbH
Inventors: Walter Watz